In QuickBooks Online, I attach a scanned/emailed PDF to each expense transaction. 

With bills, I attach the file to the bill and then on the payment transaction, I use 'Attach existing' to create a link to the same PDF, so that I am not uploading it twice. 

This has been fine until a couple of days ago: I'm no longer able to select the most recent uploads from the list of existing files. Is there some kind of restriction on how many files it can pull, or a setting I'm missing?

I have already tried the usual log in and out/empty cache/try another browser routine with no luck.